Sentences with phrase «for simple organisms»

Previously, we thought that fresh water on early Mars was a lot less reliable, drying up every few hundred years, which would've made it very hard for simple organisms to establish a beachhead.

New research presented at the European Planetary Science Congress at UCL aims to answer the final question, of whether entry and impact is survivable for simple organisms.

Not exact matches

No there is a mountain of evidence for evolution: geographic distribution, tree of life, simpler organisms are older, inheritance, DNA, etc. and no evidence for creationism — unless you've seen a woman created from the rib of a man.

All an evolutionary storyteller has to do is to start with the apparently simplest version, ignore the neural equipment that has to be present for an organism to make any use of a «photon receptor,» and spin a charming tale about how a tiny primitive light - sensing cell might grow up to be a full - fledged eye.

I don't mean taking for granted things that are totally unproven, like the fundamental process of complex organisms spontaneously emerging from simpler ones.

Way too complex for a «simple, pre-historic» organism.

If the material encasement be coarse and simple, as in the lower organisms, it permits only a little intelligence to permeate through it; if it is delicate and complex, it leaves more pores and exits, as it were, for the manifestations of consciousness....

This is just one example of the many problems that must be overcome in order to find a «natural» explanation for the evolution of complex organisms from simpler ones.

DE: This seems to me to be what his philosophy of organism should have gone for, and when he said he was trying to make this a bridge notion between the biological and physical sciences, I think the link is in his notion of the «non-uniform object» of which the simplest example is the wave.

Where to start with this one... For one those that believe Evolution and Big Bang Theory, you are really gonna believe that we once were simple one - celled or only a few celled organisms and through a series of mutations over millions of years that we are what we are today?

The sea sponge may seem like an odd choice for genomic research considering that its simple body lacks muscles, organs, and nerve cells, but the creature provides a wealth of information on how multicellular organism arose.

Hartman suggested in 1984 that the nucleus arose when a hypothetical cell that stored its genetic information as RNA instead of DNA and possessed a simple cytoskeleton became the host for an archaeal organism.

The sea slug was the model organism for Kreiner's thesis research, which explored how cellular mechanisms mediate simple behaviors and led to a publication in Science.

A simple organism with only a sliver of RNA couldn't possibly build such a complicated container for itself.

Several previously reported genes from simpler organisms code for proteins that oscillate in abundance.

Though single - celled organisms blanket the Earth and are capable of impressive biochemistry — some can eat nuclear waste, for example — their structure and shape remain simple.

And when the researchers took away rewards for simpler operations, the organisms never evolved an equals program.

Some simple organisms like bacteria can survive without oxygen, but all higher organisms need oxygen and Earth's biology would probably be a poor sight, if the atmosphere did not contain the 21 percent oxygen, which is essential for the human brain to function, for example.

For instance, in simple organisms such as yeast, when genetic material becomes damaged, the affected DNA strands increase their motion, waving about inside the cell like a sail unfurled.

Iñaki Ruiz - Trillo, a biologist at the Institute for Biological Evolution in Barcelona, believes that in these simpler organisms, integrin genes may contribute to the formation of spore sacs.

The reason for the disparity may be that the standard computer annotation method was largely developed for the genomes of simple (prokaryotic) organisms, not for the more complex sequences found in the genomes of humans and other eukaryotes.

«We have an under - appreciation for how sensory systems in simple organisms are used for fairly sophisticated adaptations.»

Simon's organism of choice for this strategy is the Saccharomyces cerevisiae, the simple yeast used to make beer and bread.

«The genomes of even simple organisms such as the fruit fly contain 120 million letters worth of DNA, much of which has yet to be decoded because the cues its provides have been too subtle for existing tools to pick up,» says coauthor Richard Mann, a biochemist at Columbia University in a statement.

The reason for this is very simple: when you don't eat enough to support the healthy functioning of every system in the organism for longer periods, your body slows down some of them in an effort to spare energy for more vital functions, and the reproductive system is the first one to get shut.

Spirulina is a simple, one - celled organism that got its name from the Latin word for «helix» or «spiral» because of its spring - like physical characteristic.

Poor quality breads, pretzels and chips are loaded with simple sugars, genetically modified organisms (GMOs) and unhealthy fats — which increase your risk for food cravings and weight gain.

Large, more active fish can't live in these oxygen poor waters, while more simple specialized organisms with a lower need for oxygen will remain, and even thrive in the absence of predation from larger species.